2G need help car will not hold idle

[asg1089]

yeah, i was reading a lot and somewhere it said that if your fpr is being overrun it will cause symptoms like that (car dying, having a big lope, and misfiring). i'm also facing a possible dead front o2 sensor which could be a contributing factor.

from what you said i'm sure it is a 2g throttle body and 90% sure that it is a 2g tps. i got a little lost in your explanation but i'm sure everything is alright.

but as for my current problem still, i'm back on the stock fuel pump (still have the 780's in) and a working stock fpr and the car still will not turn on. the o2 sensor shouldn't cause the car to not turn over. so i'm stumped as to why it isn't working.

 

[gofer]

yeah, i was reading a lot and somewhere it said that if your fpr is being overrun it will cause symptoms like that (car dying, having a big lope, and misfiring). i'm also facing a possible dead front o2 sensor which could be a contributing factor.

from what you said i'm sure it is a 2g throttle body and 90% sure that it is a 2g tps. i got a little lost in your explanation but i'm sure everything is alright.

but as for my current problem still, i'm back on the stock fuel pump (still have the 780's in) and a working stock fpr and the car still will not turn on. the o2 sensor shouldn't cause the car to not turn over. so i'm stumped as to why it isn't working.

make sure your fuel pump is working, thats the only thing you ####ed with before you couldn't get it to start. turn the key to the on position and connect to link then click on the Misc tab and click the activate fuel pump. slam your ear up to where your fp's at and see if you can hear it turn on and off. im assuming youve done the rewire, check and check again your rewire wiring going into the relay as well.

 

[steve]

With a dead O2 sensor and the fact that you may have been running max pressure before you might want to put a new set of plugs in. They may have been fouled. A bad Engine Coolant Temp sensor (or broken wires) can flood the car out too.

 

[asg1089]

hmm ok i will try new plugs. but i should mention that i just replaced spark plugs and wires no more than a month ago. and if i did have a bad coolant temp sensor would that show a cel or anything of that? or how could i check that?

i'm gunna go pull a plug out now and i will post a picture for you.

ok so i pulled the plugs and this is what i found. the tips are completely black and they smelled heavily of fuel. two of them even looked still wet. so i guess i was running extremely rich. let me know what you think.

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[gofer]

new front o2 & new spark plugs those things are black! they don't look like they've been gapped either... .28 is the correct gap. those things look like you just installed them and didn't bother gapping them.

 

[asg1089]

make sure your fuel pump is working, thats the only thing you ####ed with before you couldn't get it to start. turn the key to the on position and connect to link then click on the Misc tab and click the activate fuel pump. slam your ear up to where your fp's at and see if you can hear it turn on and off. im assuming youve done the rewire, check and check again your rewire wiring going into the relay as well.

i never saw this post for some reason, i must have skipped over it. the pump is working i turned it on using dsmlink and i heard it click on and off. i never did the rewire haven't had the need.

new front o2 & new spark plugs those things are black! they don't look like they've been gapped either... .28 is the correct gap. those things look like you just installed them and didn't bother gapping them.

the spark plugs were gapped before i installed them. i put them all to .28.

 

[steve]

I can believe what they are only a month old. If you had a plug cleaner I'd clean them and re-gap but not too many people have a cleaner now.

Make sure you get a real Denso or NTK O2 sensor that fits the cars. I see way too many 2G ECUs with blown sensor ground traces in for repair from people trying to save a buck and mis-wiring a universal sensor. I buy mine from Oxygensensors.com They show the front Denso for $49 with free shipping.

 

[asg1089]

ok cool i'll go order the front o2 now then. as for the cleaner, which cleaner would you recommend or should i just go buy new plugs?

 

[steve]

New plugs are $2 each. Go get some. Save these and you can try flushing them with carb cleaner later.
Make sure you have a wire type spark plug gap gauge so you can correctly set the gap to 0.028"

Like this one:

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[gofer]

steve knows his DSM's but us down in SOCAL have had pretty good results just using the autozone special bosch front o2 if you can't wait for shipping. AutoZone.com | | Oxygen Sensor | BOSCH O2 SENSOR

sorry for pointing the finger at you for not gapping your plugs, i didn't mean it like that.

 

[asg1089]

hahaha no worries they did look a little weird when i pulled them out i was thinking the same thing. but i just bought the bosch sensor from oxygensensors.com and have it on 2-3 day shipping total cost was $55.

i'm going to try to clean these spark plugs before i buy new ones just b/c i am still in college and money is kinda tight. i have carb cleaner sitting next to me and if i can save that 8 bucks that would buy me some dinner tonight hahaha.

ok so someone must have used my carb cleaner :-( now i have to wait till one of my roomates comes home so i can get a ride to the store. ughhhhhh

 

[gofer]

brake cleaner will work too if you have a can of that lying around...

 

[asg1089]

sweet have tonssssss of that hahaha. thanks.

they don't look new but they look much better than they did. they are now a dark gray instead of solid black. tell me what you think.

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[gofer]

looks good. theres no way your car can't idle properly now...
so you've got a new front o2 sensor in the mail along with an afpr and install kit?

 

[asg1089]

yeah o2 sensor and afpr/install kit are in the mail. should all be here at some point this week.

just an update: went to auto parts store and bought a better gap tool, denso spark plugs just for the hell of it to see if it will get the car running, and some carb cleaner just to restock my supply.

with the new gap tool i checked the gap on the old plugs and sure enough they were all perfectly at .28 except one was at .30. hmm who knows i'm going to finish up my work and then try and get the car started in a bit, we shall see.

ok so i finally got the car running again. i swapped out the old plugs with new denso plugs gapped to .28.
the car turned on fine idling high at first due to the biss screw being out too far. i also took a log of the start up and a video of the car running.

the log is extremely long b/c i just let it run while the car warmed up and while i drove the car to my parking spot (car was in an empty lot so i could work on it before it wouldn't start again).

the only problem i noticed is that she is smoking very badly to the point where when i drove it i filled my neighborhood with smoke. also, it seems as if there is fluid coming out of between the o2 housing and exhaust housing on the turbo and causing an exhaust leak/lots of smoke there as well.

i think maybe i flooded the motor with too much fuel fowling the spark plugs and having some of it leak to my exhaust finding my leak. i'm not sure on that it is just a guess so let me know what you think about that.

the o2 sensor is def. dead so the link says but that's in the mail so i don't care for now. but here's the video and the log. let me know what you think.

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accidentally posted the wrong video but here is the right one. oops

 

[asg1089]

ok so, the car is running now. running pretty well i might say i have a couple boost leaks that i have to figure out but other than that running strong. the o2 sensor and afpr should be here in the next couple of days and i will let you guys know how the install and everything goes but as for now that you all for the help, you guys really saved me a lot of time and headache and i really appreciate it. thanks again.

 

[gofer]

yea, front o2 sensor is toast... i hate to be the bearer of bad news but you didn't order everything you should have. you need to get 4 of these EXTREME PSI : Your #1 Source for In Stock Performance Parts - OEM Manifold to Turbo Bolt : Mitsubishi Eclipse 90-99 and 8 of these EXTREME PSI : Your #1 Source for In Stock Performance Parts - OEM Turbo to Manifold Washers : Mitsubishi Eclipse 90-99 before you can wipe your hands and say your cars running like its supposed to.

i enjoy helping because when i first bought this thing i was lost too. i help because thats how i learned, the nice DSM'rs on this site that have been doing it... now im sure you'll do the same when this problem comes around for someone else cause you've been there done that.

 

[asg1089]

well i would only need 3 of the manifold to turbo bolts due to one being a stud, right? and still 8 washers. that hardware store stuff is there b/c when i did the turbo swap and i first started the turbo up when the car went through one of its heat cycles it rocketed the head of the bolt off turning it also into a stud hahaha. so i had to get those for the time being and had no money to order the $6 a bolt and wait for it to be shipped. but it is on my list of things to fix at this point, i have a very long list. :-(

 

[gofer]

replacing that stud with a bolt makes life SO MUCH easier when you need to take off your exhaust manifold... don't make the mistake of just tightening those bolts in there without using antisieze. if you don't use antisieze on those turbo to manifold bolts and strip the threads in the housing your not only replacing a $6 bolt your also helix coiling the hotside of the turbo.

i feel you on the long list, these kind of things are never finished.

 

[asg1089]

yeah i feel ya, sounds like a plan, the last thing i want to do is screw up even more things on this car.